RX-4508 AM/FM STEREO RECEIVER OPERATING INSTRUCTIONS
Safety Information READ THIS BEFORE OPERATING YOUR UNIT CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE FRONT OR BACK COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This symbol indicates the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock.
Table of Contents 2 SAFETY INFORMATION 3 TABLE OF CONTENTS 4 GETTING STARTED 4 What's Included 5 Installing the Remote Control Battery 5 Operating the Range of the Remote Control 6 Front Panel 7 Front Display 7 Rear Panel 8 Remote Control 9 MAKING CONNECTIONS 9 Connecting Speakers 13 15 16 18 PARTS DESCRIPTION 6 11 16 OPERATING YOUR SYSTEM 9 Placing Speakers 9 Connecting Speakers 21 Connecting Audio Components 12 Connecting Recording Components Connecting an Antenna
Getting Started What's Included VOLUME ON / STANDBY MEMORY TUNE / PRESET INPUT PHONES Main unit POWER 1 2 3 4 5 6 7 8 A SPEAKER B DIMMER 9 PRESET MO/ST SLEEP PHONO TUNER 0 CD AUX TONE DIRECT MUTE VOLUME T UN E SEL TU N E MEMO/ ENTER S EL PRESET PRES ET L R B E BLUETOOTH A LAN C DISPLAY BASS SEARCH MODE TREBLE RC-157 Remote control (1 ea) Battery FM Antenna (1 ea) AM Antenna (1 ea) Warranty User Manual (1 ea) 4 Warranty (1 ea)
Getting Started Installing the Remote Control Battery 1 2 Remove the battery cover. Insert two AAA size batteries with the polarity matched properly. •• Always use alkaline batteries, and do not use the rechargeable batteries (Ni-Cd type). •• If the batteries run out, remove the old batteries and replace them with new ones within several minutes. •• If the batteries are removed or have been exhausted for a longer period of time, memorized contents will be cleared.
Parts Description Front Panel 1 2 ON / STANDBY 3 4 VOLUME MEMORY TUNE / PRESET 6 7 INPUT PHONES 5 1 2 3 4 5 6 7 6 ON/STANDBY Button 8 Function Buttons •• Tuning Up/Down - See page 18. •• Preset Up/Down - See page 18. •• Auto Tuning - See page 18. •• Bluetooth Playback Control - See page 21.
Parts Description Front Display 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 Information Display Headphone Indicator Stereo Indicator Tuned indicator Sleep Timer Indicator Preset Indicator Station Memory Indicator Preset Station Indicator Tone Direct Indicator Rear Panel 6 1 1 2 3 2 3 Radio Antenna Connectors Phono Connectors Audio Input Connectors 4 5 4 5 6 Audio Output Connectors Speaker Connectors AC Input Cord 7
RX-4508 AM/FM STEREO RECEIVER Remote Control POWER 1 2 3 4 5 6 7 8 9 A SPEAKER 1 B 19 PRESET MO/ST CD AUX PHONO TUNER MUTE VOLUME 14 T UN E 13 S EL MEMO/ ENTER PRES ET L R B E BLUETOOTH A LAN C DISPLAY SEARCH MODE 7 BASS TREBLE 8 RC-157 8 15 PRESET SEL 6 16 TONE DIRECT TU N E 5 SLEEP 0 3 4 17 12 11 10 9 Numeric Buttons Preset Button Source Select Buttons Tone Control Button ▲/▼ Preset Up/Down Buttons ◄/► Tuning Up/Down Buttons 18 DIMMER 2 1 2 3 4 5 ME
Making Connections Connecting Speakers Placing Speakers Determine the locations for your speaker placement according to their manufacturer’s directions and the layout of your listening room. Left and right speakers •• Place the speakers with their front surfaces as flush to the TV or monitor screen as possible. •• Place each speaker so that sound is aimed at where listener's ears would be in the main listening position.
RX-4508 AM/FM STEREO RECEIVER Rear Panel Speaker A Left Speaker A Right Speaker B Right Speaker B Left •• Be sure to connect speakers firmly and accurately according to the channel (left and right) and the polarity (+ and −). If the connections are incorrect, no sound will be produced by the speakers, and if the polarity of the speaker connection is incorrect, the sound will be unnatural and tinny. •• Be sure to use the speakers with the impedance of 8 ohms or above.
Making Connections Connecting Playback Components Source devices are components from which a playback signal originates, e.g., a Blu-ray Disc™ or DVD player; a set-top box, or HDTV tuner, etc. Phono Connection You can use the PHONO input jack to connect turntable. Rear Panel Connecting Audio Components Audio Connection Make audio connections from your source devices. •• Ensure the left (L) and right (R) channels and the inputs and outputs are correctly connected.
RX-4508 AM/FM STEREO RECEIVER Listening with Headphones 1 Connect the headphones to the PHONES jack on the front panel. ON / STANDBY VOLUME MEMORY TUNE / PRESET INPUT Connecting Recording Components You can connect audio recording devices to the AUX OUT jacks. You can make an audio recording from the built-in tuner or from an audio source connected to the main unit. PHONES Rear Panel PHONES •• Be careful not to set the volume too high when using headphones.
Making Connections Connecting an Antenna To listen to radio stations, connect the FM wire antenna and AM loop antenna as illustrated below. Outdoor Antenna 1 Remove the indoor antenna if it is connected. 2 Connect the FM outdoor antenna to the FM antenna terminal. Connecting FM Antenna To strengthen the signal reception, extend the antenna to its full length. Indoor Antenna 1 Connect the FM indoor antenna to the FM antenna terminal.
RX-4508 AM/FM STEREO RECEIVER Connecting AM Antenna 1 Assemble the AM loop antenna as illustrated below. 2 Place the antenna as far as possible from the main unit, TV set, speaker cords and the AC input cord, and set the direction for the best reception. 3 If the reception is poor with the AM loop antenna, it is recommended to replace it with an AM outdoor antenna.
Making Connections Connecting Power Make sure to plug in only after you have connected all your components to the main unit. Plug the supplied AC power cord into the wall outlet.
Operating Your System 4 Listening to Your System Select the input source you want to play back. •• On the main unit, press INPUT. •• Each time the button is pressed, the display changes in the following order: Basic Operation You can listen to audio by following the basic procedures below. 1 Turn on the connected component. 2 Turn on the main unit. FM AM CD AUX PHONO Bluetooth AUDIO •• On the remote control, press a source select button. •• On the main unit, press ON/STANDBY.
Operating Your System Muting the Sound Adjusting the Tone (Bass and Treble) You can mute the sound temporarily by pressing MUTE. You can adjust the tone (bass and treble) as desired. 1 Press MUTE to mute the sound. TONE DIRECT 1 •• "TON CTRL" is displayed on the display panel. MUTE VOLUME TONE DIRECT S EL SEL TU N E T UN E PRESET MEMO/ ENTER Select the tone control mode by pressing TONE DIRECT.
RX-4508 AM/FM STEREO RECEIVER Auto Tuning 1 1 Select FM or AM tuner as the input source. •• On the main unit, press INPUT repeatedly. •• On the remote control, press TUNER repeatedly. PRESET MO/ST SLEEP PHONO TUNER 0 INPUT CD AUX Press and hold TUNE ◄ or TUNE► for more than 1 second. •• On the main unit, press and hold ◄ or ► for more than 1 second. •• The tuner keeps searching until a station with strong signal strength is found. The display shows the tuned frequency.
Operating Your System 3 Select a desired preset number (1~30). •• On the main unit, press ◄ or ►. •• On the remote control, press PRESET ▲ or PRESET ▼. •• A stored station is erased from the memory by storing another station in its place. TONE DIRECT MUTE VOLUME 1 Press and hold MEMO/ENTER for more than 2 seconds. •• "AUTO MEM" blinks and the main unit begins to preset stations with strong signals. •• Up to 30 FM stations may be stored. •• To stop auto presetting, press MEMO/ ENTER again.
RX-4508 AM/FM STEREO RECEIVER Tuning in to Preset Stations 1 Select a desired preset number. •• On the main unit, press ◄ or ►. •• On the remote control, press PRESET ▲ or PRESET ▼. TONE DIRECT MUTE VOLUME Scanning Preset Stations in Sequence 1 Press Preset. •• The receiver starts scanning the stations in the preset sequence. 2 Press Preset again to stop scanning.
Operating Your System 5 Bluetooth Bluetooth technology is a short-range wireless technology that enables wireless data communication between digital devices. You can enjoy music wirelessly with a music player featuring Bluetooth wireless technology such as MP3 player, mobile phone, etc.. When pairing is completed, "CONNECTED" is displayed on the display panel and the Bluetooth indicator is turned on. •• If the last paired device in range during pairing mode, the device will connect automatically.
RX-4508 AM/FM STEREO RECEIVER To Skip Forward or Backward 1 Each time the button is pressed, a track is skipped forward or backward. •• On the main unit, press ◄ or ►. or •• On the remote control, press . PRES ET L R B E BLUETOOTH A LAN C DISPLAY BASS SEARCH MODE TREBLE To Search Forward or Backward 1 Each time the button is pressed and held, playback point is moved forward or backward. •• On the main unit, press and hold ◄ or ► for more than 1 second.
Operating Your System Using Other Functions •• When you play music via Bluetooth, the auto power control does not works. Setting the Sleep Timer You can set a specified period of time before the main unit is automatically shut. 1 Press SLEEP. •• Each time the button is pressed, the sleep time changes as follows: 10 20 30 60 90 Off Unit: minutes •• While operating the sleep timer, " " lights up. •• When the sleep time is selected, the fluorescent display is dimly lit.
Troubleshooting If you experience any of the following difficulties while using the system, use this troubleshooting guide to help remedy the problem before requesting servicing. Should any problem persist, consult your nearest authorized dealer or authorized independent company. If the unit does not operate normally due to external influence such as static electricity, disconnect the power plug from the outlet and insert again to return to normal operating conditions.
Additional Information Specifications Audio Section Power Output 100 W x 2 ch (40 Hz – 20 kHz, 8 Ohms, THD 1 % / Stereo Mode) Input sensitivity/impedance Phono(MM): 2.5 mV / 47k ohms Line(CD, AUX): 200 mV / 47k ohms Signal-to-noise ratio (IHF-A) Phono(MM): 65 dB Line(CD, AUX): 93 dB Frequency response Phono(MM), RIAA: 30 Hz – 20 kHz : ±3 dB Line(CD, AUX): 10 Hz – 95 kHz : ±3 dB Bass/Treble control ±10 dB FM Tuner Section Frequency range 87.5 – 108.
RX-4508 AM/FM STEREO RECEIVER Bluetooth Section Model name IK-CSR8645 Out Power -6 – 4 dBm Frequency Range 2402 – 2480 MHz General Specifications Power requirement AC 230V / 50 Hz Power consumption 230 W Dimensions (W×H×D, including protruding parts) 17.1" x 5.5" x 14.7" (435 mm x 141 mm x 375 mm) Weight (Net) 16.3 lb (7.
RX-4508 AM/FM STEREO RECEIVER 5707-00000-935-0S Printed in Vietnam
